initial

2/queen1/test

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+solve with HSgpt:
+
+TL;DR
+The program is a tiny “Collatz‑step” challenge.
+
+    main creates two random numbers:
+        N = 1 000 000 + random() – a large (≈ 1 million) starting value.
+        k = abs( (random() & 0xFF) ) – a small non‑negative integer (0‑255).
+    func0 prints “Challenge: N k\n>>> ”, reads an integer answer from stdin, calls func1(N,k), and checks whether the returned value equals answer. If it does, it prints “Correct.” and returns 0; otherwise it prints “Wrong.” and returns 1.
+    func1 implements k iterations of the Collatz (3n+1) map on the value n that is passed in w0.
+
+
+Challenge: 524465851 157
+The result after performing 157 Collatz‑steps on the starting value 524 465 851 is: 526
+Challenge: 1871541254 68
+Result after 68 Collatz steps: 30046216
+